Safety window-cleaning device



1621626 March 22 1927- H. P. cms-:FFO l SAFETY WINDOW CLEANING DEVICE Filed March 26. 1925 .v v /v .M HI.

' mmvron ATTokNEw disposed thereto and adapted Patented Mar. 22, 1927.

siren srA'rEs HENRY P. CHIEFFO, 0F WEEHAWKEN, NEW JERSEY.

SAFETY WINDOW-CLEANING DEVICE.

Application tiled 'March 26, 1925. Serial No. 18,380.

The invention relates to improvements in devices for allowing a safe cleaning of windows from the outside and doing away with the danger connected with work of this kind, and it is the principal object of my invention to provide a platform which may safely and readily be attached to a window bracket and detached therefrom and folded for storing in order to take up a minimum of space.

Another object of the invention is the provision of a device of this character which is simple and inexpensive and which presents a safe support for a person engaged in cleaning the windows of a house from the outside.

A further object of the invention is the provision of a platform for window cleaning with which a fire-escape can be combined, to be quickly and readily attached to the outside of a house and one which allows a plurality of persons to make a quick and safe escape from a burning building.

These and other objects and advantages of my invention will become more fully known, as the description thereof proceeds and will then be specifically defined in the appended claim.

In the accompanying drawings, forming a `material part of this disclosure:

Fig- 1 is a perspective view of my novel device attached to the outer wall of a house at one of its windows.

Fig. 2 is a side elevation thereof.

Fig. 3 is a top plan view of the device.

To the outside of the window-sill 10 of the window 11 of a house 12, brackets 13 and 14 ar-e attached in any suitable well-known manner. The platform for supporting a person during the window cleaning operation at the outside of a house or window comprises a pair of lateral bars 15 and 16, the rear ends of which are formed into knees 17 and 18 and supporting brackets 19 and 2O each having one arm angular-ly to grip the inner wall of the window-sill. Holes 21 and 22 are made in the parts 19 and 20 in front of the outer face of the window-sill and allow the passage of preferably wedgeshaped pins 23 or headed bolts for firmly holding the device on a window-sill.

To the inner ends of bars 15 and 16, are pivotally connected inclined bars or rods 24 and 25, the upper ends of which have eyes 26 adapted to engage hooks 27 on brackets 13 and 14. The rods 24 and 25 are extensible and their parts can be locked in any of their relative adjusted positions by means of locknuts or screws.

To the inner faces of bars 24 and 25, the lower ends of rods 28 are pivotally secured, to the upper ends of which the links 29 and 30 are pivotally secured, to the outer ends of which other links 31 and 32 are pivotally attached as at 33, having their opposite ends pivotally attached as at 34 to rods 24 and 25. The bars or rods 28 are connected by telescoping upper bars 35 and lower bars 36 clearly shown in Fig. 1 of the drawing.

The inner side of bar 16 has hinged there to, by means of hinges 40, the slats 37 being formed with grooves 37a on one side, and tongues 37b on the other. The inner side of bar 15 has secured thereto, by means of latches 41, slats 37 being formed with complementary grooves and tongue to engage the grooves and tongues of slats 37. The joint formed by the various slats being very tight, so as to permit frictional engagement between said slats to engage the slats as a unit, so that in the event of using the fire escape cables 43, the latches 41 are opened, allowing the slats to swing downward on the hinges 40, and the frictional engagement preventing the slats 37 from falling down to the ground below. This slat structure allows a longitudinal adjustment to accom modate windows of different widths.

In case the window-cleaners platform is to be used as a fire-escape, to the front pins 34 rollers or drums 42 are rotatably secured over which are wound cables 43 or the like, provided with knots and being of suiiicient length when unwound to reach the ground, allowing a gradual descent of persons attempting to escape aV fire in the building.

The operation of my device will be entirely clear from the above description without further detailed explanation.

The general arrangement and the construction of the minor details of my device` may be changed within the scope defined in the appended claim, without departure from the spirit of my invention.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent, is:

A window-cleaners. longitudinally adjustable platform with associated holding means, comprising a pair of transverse snpporting bars, longitudinally disposed slats hingedly secured to the inner side of one of said transverse bars, said slats each being the joint formed by Jthe grooves and tongues formed along one edge with a groove, and being very tight to provide friotional en- 10 along the other edge With a` tongue, longizgra-gement between said slats, forming a, tudinally disposed slats secured to the inner unit.

side of the other of said transverse bars, by In testimony whereof I have affixed my ineansfof latches, and being formed with coinsignature.

plementary grooves and tongues, engaging' the before mentioned grooves and tongues, HENRY P. CHIEFFO, 

